A 3 axis router won't make complex figures like your (nice!) minotaur, and even a 4 axis will have trouble with the more slender parts.
You can do this easily with rapid prototyping methods such as 3D plastic printing or stereolithography. New machines are pretty expensive, but I've seen used ones on Ebay for several thousand.
I'd consider finding a rapid prototyping company to make you a model. I bet you could get a 6" minotaur for a couple hundred bucks.
There is a demand for artistic 3D. I've seen it used mostly in architecture, entertainment, and singage.